Is 'fat' really the worst thing a human being can be?

So I saw this quote by JK Rowling:

Is 'fat' really the worst thing a human being can be? Is 'fat' worse than 'vindictive,' 'jealous,' 'shallow,' 'vain,' 'boring,' or cruel' ?

I have spent most of my life being told I was fat by my father & mother, relatives  & even people I have worked with. 

I remember being 16 & my mother asked my male cousin that is the same age as me to talk to me about losing weight. It was super uncomfortable for him & soul crushing for me. I can tell you the day & what I was wearing & that was 31 years ago. I was a size 10 at the time A SIZE 10. My mother has never been smaller than an 18 /20 for as long as I can remember.

I remember standing in  my kitchen as a kid & making a hot dog my father walked in & said no wonder you are so fat. 

Those kinds of things stay with you, they make you feel like you are not good enough. The more they said it the more I ate.  It made me judge people by their size. One time at my heaviest of over 200lbs a woman I work with asked if I was pregnant. I went back to my desk & cried, I literally cried. After that I knew I had to do something I started eating better & walking & exercising twice a day & lost 70lbs.

Then my husband got sick & I got depressed, I started eating. I gained  back 40 of the 70 lbs I had lost & I am right back to beating myself up. Putting my self worth on my size. My Dr said I would love to see you lose the 40 lbs, yeah me too jackass.

I am slowly getting my motivation back & walking at lunch & walking the dog after work, but my self worth is still tied to my size. I obsess about food & deny myself things I would like to try or have because of how fattening they are.

So is enjoying food & life the worst thing I can do? Is fat the worst thing I could be?